How much is 75 mcg of vitamin D?
                                
                                
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                                    7 min read                                
                            
                                According to the National Institutes of Health, 1 microgram (mcg) of vitamin D is equal to 40 International Units (IU). This crucial conversion is the key to understanding how much is 75 mcg of vitamin D and what it signifies for your health and safety.